function drawHeader(role) {
	if(role == 1){
		document.write('<div id="header"></div>');
		$("#header").load("user_header.jsp");
	}
	if(role == 2){
		document.write('<div id="header"></div>');
		$("#header").load("mod_header.jsp");
	}
	if(role == 3){
		document.write('<div id="header"></div>');
		$("#header").load("admin_header.jsp");
	}

}

function drawContent(page_name){
	document.write('<div id="content"></div>');
	   $("#content").load(page_name);
}